697 lines
13 KiB
C
697 lines
13 KiB
C
/*
|
|
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
|
|
* See the copyright notice in the ACK home directory, in the file "Copyright".
|
|
*/
|
|
/* ar - archiver Author: Michiel Huisjes */
|
|
/* Made into arch/aal by Ceriel Jacobs
|
|
*/
|
|
|
|
static char RcsId[] = "$Header$";
|
|
|
|
/*
|
|
* Usage: [arch|aal] [adprtvx] archive [file] ...
|
|
* v: verbose
|
|
* x: extract
|
|
* a: append
|
|
* r: replace (append when not in archive)
|
|
* d: delete
|
|
* t: print contents of archive
|
|
* p: print named files
|
|
* l: temporaries in current directory instead of /tmp
|
|
* c: don't give "create" message
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <signal.h>
|
|
#include <arch.h>
|
|
#ifdef AAL
|
|
#include <ranlib.h>
|
|
#include <out.h>
|
|
#define MAGIC_NUMBER AALMAG
|
|
#ifdef AAL
|
|
#define TABSZ 2000 /* maximum # of ranlib table entries */
|
|
#define STRTABSZ 8*TABSZ /* maximum size of string table */
|
|
long offset;
|
|
struct ranlib tab[TABSZ];
|
|
long tnum = 0;
|
|
char tstrtab[STRTABSZ];
|
|
long tssiz = 0;
|
|
char *malloc(), *strcpy(), *strncpy();
|
|
long lseek();
|
|
long time();
|
|
#endif AAL
|
|
#else
|
|
#define MAGIC_NUMBER ARMAG
|
|
#endif
|
|
|
|
#define odd(nr) (nr & 01)
|
|
#define even(nr) (odd(nr) ? nr + 1 : nr)
|
|
|
|
typedef char BOOL;
|
|
#define FALSE 0
|
|
#define TRUE 1
|
|
|
|
#define READ 0
|
|
#define APPEND 2
|
|
#define CREATE 1
|
|
|
|
#define MEMBER struct ar_hdr
|
|
|
|
#define NIL_PTR ((char *) 0)
|
|
#define NIL_MEM ((MEMBER *) 0)
|
|
#define NIL_LONG ((long *) 0)
|
|
|
|
#define IO_SIZE (10 * 1024)
|
|
|
|
#define equal(str1, str2) (!strncmp((str1), (str2), 14))
|
|
|
|
BOOL verbose;
|
|
BOOL app_fl;
|
|
BOOL ex_fl;
|
|
BOOL show_fl;
|
|
BOOL pr_fl;
|
|
BOOL rep_fl;
|
|
BOOL del_fl;
|
|
BOOL nocr_fl;
|
|
BOOL local_fl;
|
|
|
|
int ar_fd;
|
|
|
|
char io_buffer[IO_SIZE];
|
|
|
|
char *progname;
|
|
|
|
char temp_buf[32];
|
|
char *temp_arch = &temp_buf[0];
|
|
extern char *mktemp();
|
|
extern char *ctime();
|
|
|
|
usage()
|
|
{
|
|
error(TRUE, "usage: %s %s archive [file] ...\n",
|
|
progname,
|
|
#ifdef AAL
|
|
"[acdrtxvl]"
|
|
#else
|
|
"[acdprtxvl]"
|
|
#endif
|
|
);
|
|
}
|
|
|
|
/*VARARGS2*/
|
|
error(quit, str1, str2, str3, str4)
|
|
BOOL quit;
|
|
char *str1, *str2, *str3, *str4;
|
|
{
|
|
char errbuf[256];
|
|
|
|
sprint(errbuf, str1, str2, str3, str4);
|
|
write(2, errbuf, strlen(errbuf));
|
|
if (quit) {
|
|
unlink(temp_arch);
|
|
_exit(1);
|
|
}
|
|
}
|
|
|
|
char *basename(path)
|
|
char *path;
|
|
{
|
|
register char *ptr = path;
|
|
register char *last = NIL_PTR;
|
|
|
|
while (*ptr != '\0') {
|
|
if (*ptr == '/')
|
|
last = ptr;
|
|
ptr++;
|
|
}
|
|
if (last == NIL_PTR)
|
|
return path;
|
|
if (*(last + 1) == '\0') {
|
|
*last = '\0';
|
|
return basename(path);
|
|
}
|
|
return last + 1;
|
|
}
|
|
|
|
extern unsigned int rd_unsigned2();
|
|
|
|
open_archive(name, mode)
|
|
register char *name;
|
|
register int mode;
|
|
{
|
|
unsigned short magic = 0;
|
|
int fd;
|
|
|
|
if (mode == CREATE) {
|
|
if ((fd = creat(name, 0644)) < 0)
|
|
error(TRUE, "cannot creat %s\n", name);
|
|
magic = MAGIC_NUMBER;
|
|
wr_int2(fd, magic);
|
|
return fd;
|
|
}
|
|
|
|
if ((fd = open(name, mode)) < 0) {
|
|
if (mode == APPEND) {
|
|
close(open_archive(name, CREATE));
|
|
if (!nocr_fl) error(FALSE, "%s: creating %s\n", progname, name);
|
|
return open_archive(name, APPEND);
|
|
}
|
|
error(TRUE, "cannot open %s\n", name);
|
|
}
|
|
lseek(fd, 0L, 0);
|
|
magic = rd_unsigned2(fd);
|
|
if (magic != MAGIC_NUMBER)
|
|
error(TRUE, "%s is not in ar format\n", name);
|
|
|
|
return fd;
|
|
}
|
|
|
|
catch()
|
|
{
|
|
unlink(temp_arch);
|
|
_exit (2);
|
|
}
|
|
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
register char *ptr;
|
|
int pow, pid;
|
|
|
|
progname = argv[0];
|
|
|
|
if (argc < 3)
|
|
usage();
|
|
|
|
for (ptr = argv[1]; *ptr; ptr++) {
|
|
switch (*ptr) {
|
|
case 't' :
|
|
show_fl = TRUE;
|
|
break;
|
|
case 'v' :
|
|
verbose = TRUE;
|
|
break;
|
|
case 'x' :
|
|
ex_fl = TRUE;
|
|
break;
|
|
case 'a' :
|
|
app_fl = TRUE;
|
|
break;
|
|
case 'c' :
|
|
nocr_fl = TRUE;
|
|
break;
|
|
#ifndef AAL
|
|
case 'p' :
|
|
pr_fl = TRUE;
|
|
break;
|
|
#endif
|
|
case 'd' :
|
|
del_fl = TRUE;
|
|
break;
|
|
case 'r' :
|
|
rep_fl = TRUE;
|
|
break;
|
|
case 'l' :
|
|
local_fl = TRUE;
|
|
break;
|
|
default :
|
|
usage();
|
|
}
|
|
}
|
|
if (local_fl) strcpy(temp_arch, "ar.XXXXXX");
|
|
else strcpy(temp_arch, "/tmp/ar.XXXXXX");
|
|
|
|
if (app_fl + ex_fl + del_fl + rep_fl + show_fl + pr_fl != 1)
|
|
usage();
|
|
|
|
if (rep_fl || del_fl
|
|
#ifdef AAL
|
|
|| app_fl
|
|
#endif
|
|
) {
|
|
mktemp(temp_arch);
|
|
}
|
|
|
|
signal(SIGINT, catch);
|
|
get(argc, argv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
MEMBER *
|
|
get_member()
|
|
{
|
|
static MEMBER member;
|
|
register int ret;
|
|
|
|
again:
|
|
if ((ret = rd_arhdr(ar_fd, &member)) == 0)
|
|
return NIL_MEM;
|
|
#ifdef AAL
|
|
if (equal(SYMDEF, member.ar_name)) {
|
|
lseek(ar_fd, member.ar_size, 1);
|
|
goto again;
|
|
}
|
|
#endif
|
|
return &member;
|
|
}
|
|
|
|
char *get_mode();
|
|
|
|
get(argc, argv)
|
|
int argc;
|
|
register char *argv[];
|
|
{
|
|
register MEMBER *member;
|
|
int i = 0;
|
|
int temp_fd, read_chars;
|
|
|
|
ar_fd = open_archive(argv[2], (show_fl || pr_fl || ex_fl) ? READ : APPEND);
|
|
if (rep_fl || del_fl
|
|
#ifdef AAL
|
|
|| app_fl
|
|
#endif
|
|
)
|
|
temp_fd = open_archive(temp_arch, CREATE);
|
|
while ((member = get_member()) != NIL_MEM) {
|
|
if (argc > 3) {
|
|
for (i = 3; i < argc; i++) {
|
|
if (equal(basename(argv[i]), member->ar_name))
|
|
break;
|
|
}
|
|
if (i == argc || app_fl) {
|
|
if (rep_fl || del_fl
|
|
#ifdef AAL
|
|
|| app_fl
|
|
#endif
|
|
) {
|
|
#ifdef AAL
|
|
if (i != argc) {
|
|
print("%s: already in archive\n", argv[i]);
|
|
argv[i] = "";
|
|
}
|
|
#endif
|
|
wr_arhdr(temp_fd, member);
|
|
copy_member(member, ar_fd, temp_fd, 0);
|
|
}
|
|
else {
|
|
#ifndef AAL
|
|
if (app_fl && i != argc) {
|
|
print("%s: already in archive\n", argv[i]);
|
|
argv[i] = "";
|
|
}
|
|
#endif
|
|
lseek(ar_fd, even(member->ar_size),1);
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
if (ex_fl || pr_fl)
|
|
extract(member);
|
|
else {
|
|
if (rep_fl)
|
|
add(argv[i], temp_fd, "r - %s\n");
|
|
else if (show_fl) {
|
|
char buf[sizeof(member->ar_name) + 2];
|
|
register char *p = buf, *q = member->ar_name;
|
|
|
|
while (q <= &member->ar_name[sizeof(member->ar_name)-1] && *q) {
|
|
*p++ = *q++;
|
|
}
|
|
*p++ = '\n';
|
|
*p = '\0';
|
|
if (verbose) {
|
|
char *mode = get_mode(member->ar_mode);
|
|
char *date = ctime(&(member->ar_date));
|
|
|
|
*(date + 16) = '\0';
|
|
*(date + 24) = '\0';
|
|
|
|
print("%s%3u/%u%7ld %s %s %s",
|
|
mode,
|
|
(unsigned) member->ar_uid,
|
|
(unsigned) member->ar_gid,
|
|
member->ar_size,
|
|
date+4,
|
|
date+20,
|
|
buf);
|
|
}
|
|
else print(buf);
|
|
}
|
|
else if (del_fl)
|
|
show("d - %s\n", member->ar_name);
|
|
lseek(ar_fd, even(member->ar_size), 1);
|
|
}
|
|
argv[i] = "";
|
|
}
|
|
|
|
if (argc > 3) {
|
|
for (i = 3; i < argc; i++)
|
|
if (argv[i][0] != '\0') {
|
|
#ifndef AAL
|
|
if (app_fl)
|
|
add(argv[i], ar_fd, "a - %s\n");
|
|
else
|
|
#endif
|
|
if (rep_fl
|
|
#ifdef AAL
|
|
|| app_fl
|
|
#endif
|
|
)
|
|
add(argv[i], temp_fd, "a - %s\n");
|
|
else {
|
|
print("%s: not found\n", argv[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (rep_fl || del_fl
|
|
#ifdef AAL
|
|
|| app_fl
|
|
#endif
|
|
) {
|
|
signal(SIGINT, SIG_IGN);
|
|
close(ar_fd);
|
|
close(temp_fd);
|
|
ar_fd = open_archive(argv[2], CREATE);
|
|
temp_fd = open_archive(temp_arch, APPEND);
|
|
#ifdef AAL
|
|
write_symdef();
|
|
#endif
|
|
while ((read_chars = read(temp_fd, io_buffer, IO_SIZE)) > 0)
|
|
mwrite(ar_fd, io_buffer, read_chars);
|
|
close(temp_fd);
|
|
unlink(temp_arch);
|
|
}
|
|
close(ar_fd);
|
|
}
|
|
|
|
add(name, fd, mess)
|
|
char *name;
|
|
int fd;
|
|
char *mess;
|
|
{
|
|
static MEMBER member;
|
|
register int read_chars;
|
|
struct stat status;
|
|
int src_fd;
|
|
|
|
if (stat(name, &status) < 0) {
|
|
error(FALSE, "cannot find %s\n", name);
|
|
return;
|
|
}
|
|
else if ((src_fd = open(name, 0)) < 0) {
|
|
error(FALSE, "cannot open %s\n", name);
|
|
return;
|
|
}
|
|
|
|
strncpy (member.ar_name, basename (name), sizeof(member.ar_name));
|
|
member.ar_uid = status.st_uid;
|
|
member.ar_gid = status.st_gid;
|
|
member.ar_mode = status.st_mode;
|
|
member.ar_date = status.st_mtime;
|
|
member.ar_size = status.st_size;
|
|
wr_arhdr(fd, &member);
|
|
#ifdef AAL
|
|
do_object(src_fd, member.ar_size);
|
|
lseek(src_fd, 0L, 0);
|
|
offset += AR_TOTAL + even(member.ar_size);
|
|
#endif
|
|
while (status.st_size > 0) {
|
|
int x = IO_SIZE;
|
|
|
|
read_chars = x;
|
|
if (status.st_size < x) {
|
|
x = status.st_size;
|
|
read_chars = x;
|
|
status.st_size = 0;
|
|
x = even(x);
|
|
}
|
|
else status.st_size -= x;
|
|
if (read(src_fd, io_buffer, read_chars) != read_chars)
|
|
error(FALSE,"%s seems to shrink\n", name);
|
|
mwrite(fd, io_buffer, x);
|
|
}
|
|
|
|
if (verbose)
|
|
show(mess, name);
|
|
close(src_fd);
|
|
}
|
|
|
|
extract(member)
|
|
register MEMBER *member;
|
|
{
|
|
int fd = 1;
|
|
char buf[sizeof(member->ar_name) + 1];
|
|
|
|
strncpy(buf, member->ar_name, sizeof(member->ar_name));
|
|
buf[sizeof(member->ar_name)] = 0;
|
|
if (pr_fl == FALSE && (fd = creat(buf, 0644)) < 0) {
|
|
error(FALSE, "cannot create %s\n", buf);
|
|
fd = -1;
|
|
}
|
|
|
|
if (verbose) {
|
|
if (pr_fl == FALSE) show("x - %s\n", buf);
|
|
else show("\n<%s>\n\n", buf);
|
|
}
|
|
|
|
copy_member(member, ar_fd, fd, 1);
|
|
|
|
if (fd >= 0 && fd != 1)
|
|
close(fd);
|
|
if (pr_fl == FALSE) chmod(buf, member->ar_mode);
|
|
}
|
|
|
|
copy_member(member, from, to, extracting)
|
|
register MEMBER *member;
|
|
int from, to;
|
|
{
|
|
register int rest;
|
|
long mem_size = member->ar_size;
|
|
BOOL is_odd = odd(mem_size) ? TRUE : FALSE;
|
|
|
|
#ifdef AAL
|
|
if (! extracting) {
|
|
long pos = lseek(from, 0L, 1);
|
|
|
|
do_object(from, mem_size);
|
|
offset += AR_TOTAL + even(mem_size);
|
|
lseek(from, pos, 0);
|
|
}
|
|
#endif
|
|
do {
|
|
rest = mem_size > (long) IO_SIZE ? IO_SIZE : (int) mem_size;
|
|
if (read(from, io_buffer, rest) != rest) {
|
|
char buf[sizeof(member->ar_name) + 1];
|
|
|
|
strncpy(buf, member->ar_name, sizeof(member->ar_name));
|
|
buf[sizeof(member->ar_name)] = 0;
|
|
error(TRUE, "read error on %s\n", buf);
|
|
}
|
|
if (to >= 0) mwrite(to, io_buffer, rest);
|
|
mem_size -= (long) rest;
|
|
} while (mem_size != 0L);
|
|
|
|
if (is_odd) {
|
|
lseek(from, 1L, 1);
|
|
if (to >= 0 && ! extracting)
|
|
lseek(to, 1L, 1);
|
|
}
|
|
}
|
|
|
|
char *
|
|
get_mode(mode)
|
|
register int mode;
|
|
{
|
|
static char mode_buf[11];
|
|
register int tmp = mode;
|
|
int i;
|
|
|
|
mode_buf[9] = ' ';
|
|
for (i = 0; i < 3; i++) {
|
|
mode_buf[i * 3] = (tmp & S_IREAD) ? 'r' : '-';
|
|
mode_buf[i * 3 + 1] = (tmp & S_IWRITE) ? 'w' : '-';
|
|
mode_buf[i * 3 + 2] = (tmp & S_IEXEC) ? 'x' : '-';
|
|
tmp <<= 3;
|
|
}
|
|
if (mode & S_ISUID)
|
|
mode_buf[2] = 's';
|
|
if (mode & S_ISGID)
|
|
mode_buf[5] = 's';
|
|
return mode_buf;
|
|
}
|
|
|
|
wr_fatal()
|
|
{
|
|
error(TRUE, "write error\n");
|
|
}
|
|
|
|
rd_fatal()
|
|
{
|
|
error(TRUE, "read error\n");
|
|
}
|
|
|
|
mwrite(fd, address, bytes)
|
|
int fd;
|
|
register char *address;
|
|
register int bytes;
|
|
{
|
|
if (write(fd, address, bytes) != bytes)
|
|
error(TRUE, "write error\n");
|
|
}
|
|
|
|
show(s, name)
|
|
char *s, *name;
|
|
{
|
|
MEMBER x;
|
|
char buf[sizeof(x.ar_name)+1];
|
|
register char *p = buf, *q = name;
|
|
|
|
while (q <= &name[sizeof(x.ar_name)-1] && *q) *p++ = *q++;
|
|
*p++ = '\0';
|
|
print(s, buf);
|
|
}
|
|
|
|
#ifdef AAL
|
|
/*
|
|
* Write out the ranlib table: first 4 bytes telling how many ranlib structs
|
|
* there are, followed by the ranlib structs,
|
|
* then 4 bytes giving the size of the string table, followed by the string
|
|
* table itself.
|
|
*/
|
|
write_symdef()
|
|
{
|
|
register struct ranlib *ran;
|
|
register char *str;
|
|
register int i;
|
|
register long delta;
|
|
MEMBER arbuf;
|
|
|
|
if (odd(tssiz))
|
|
tstrtab[tssiz++] = '\0';
|
|
for (i = 0; i < sizeof(arbuf.ar_name); i++)
|
|
arbuf.ar_name[i] = '\0';
|
|
strcpy(arbuf.ar_name, SYMDEF);
|
|
arbuf.ar_size = 4 + 2 * 4 * tnum + 4 + tssiz;
|
|
time(&arbuf.ar_date);
|
|
arbuf.ar_uid = getuid();
|
|
arbuf.ar_gid = getgid();
|
|
arbuf.ar_mode = 0444;
|
|
wr_arhdr(ar_fd,&arbuf);
|
|
wr_long(ar_fd, tnum);
|
|
/*
|
|
* Account for the space occupied by the magic number
|
|
* and the ranlib table.
|
|
*/
|
|
delta = 2 + AR_TOTAL + arbuf.ar_size;
|
|
for (ran = tab; ran < &tab[tnum]; ran++) {
|
|
ran->ran_pos += delta;
|
|
}
|
|
|
|
wr_ranlib(ar_fd, tab, tnum);
|
|
wr_long(ar_fd, tssiz);
|
|
wr_bytes(ar_fd, tstrtab, tssiz);
|
|
}
|
|
|
|
/*
|
|
* Return whether the bytes in `buf' form a good object header.
|
|
* The header is put in `headp'.
|
|
*/
|
|
int
|
|
is_outhead(headp)
|
|
register struct outhead *headp;
|
|
{
|
|
|
|
return !BADMAGIC(*headp) && headp->oh_nname != 0;
|
|
}
|
|
|
|
do_object(f, size)
|
|
long size;
|
|
{
|
|
struct outhead headbuf;
|
|
|
|
if (size < SZ_HEAD) {
|
|
/* It can't be an object file. */
|
|
return;
|
|
}
|
|
/*
|
|
* Read a header to see if it is an object file.
|
|
*/
|
|
if (! rd_fdopen(f)) {
|
|
rd_fatal();
|
|
}
|
|
rd_ohead(&headbuf);
|
|
if (!is_outhead(&headbuf)) {
|
|
return;
|
|
}
|
|
do_names(&headbuf);
|
|
}
|
|
|
|
/*
|
|
* First skip the names and read in the string table, then seek back to the
|
|
* name table and read and write the names one by one. Update the ranlib table
|
|
* accordingly.
|
|
*/
|
|
do_names(headp)
|
|
struct outhead *headp;
|
|
{
|
|
register char *strings;
|
|
register int nnames = headp->oh_nname;
|
|
#define NNAMES 100
|
|
struct outname namebuf[NNAMES];
|
|
char *xxx;
|
|
|
|
if ( headp->oh_nchar != (unsigned int)headp->oh_nchar ||
|
|
(strings = malloc((unsigned int)headp->oh_nchar)) == (char *)0
|
|
) {
|
|
error(TRUE, "string table too big\n");
|
|
}
|
|
rd_string(strings, headp->oh_nchar);
|
|
xxx = strings - OFF_CHAR(*headp);
|
|
while (nnames) {
|
|
int i = nnames >= NNAMES ? NNAMES : nnames;
|
|
register struct outname *p = namebuf;
|
|
|
|
nnames -= i;
|
|
rd_name(namebuf, i);
|
|
while (i--) {
|
|
if (p->on_foff == (long)0)
|
|
continue; /* An unrecognizable name. */
|
|
p->on_mptr = xxx + p->on_foff;
|
|
/*
|
|
* Only enter names that are exported and are really
|
|
* defined.
|
|
*/
|
|
if ( (p->on_type & S_EXT) &&
|
|
(p->on_type & S_TYP) != S_UND &&
|
|
!(p->on_type & S_COM)
|
|
)
|
|
enter_name(p);
|
|
p++;
|
|
}
|
|
}
|
|
free(strings);
|
|
}
|
|
|
|
enter_name(namep)
|
|
struct outname *namep;
|
|
{
|
|
register char *cp;
|
|
|
|
if (tnum >= TABSZ) {
|
|
error(TRUE, "symbol table overflow\n");
|
|
}
|
|
tab[tnum].ran_off = tssiz;
|
|
tab[tnum].ran_pos = offset;
|
|
|
|
for (cp = namep->on_mptr; tstrtab[tssiz++] = *cp++;)
|
|
if (tssiz >= STRTABSZ) {
|
|
error(TRUE, "string table overflow\n");
|
|
}
|
|
tnum++;
|
|
}
|
|
#endif AAL
|